Add parentheses

Thanks to Juan Sebastian Gaitan
https://stacks.math.columbia.edu/tag/074B#comment-4637

CONTRIBUTORS

@@ -96,6 +96,7 @@ Dragos Fratila
 Robert Friedman
 Robert Furber
 Ofer Gabber
+Juan Sebastian Gaitan
 Lennart Galinat
 Martin Gallauer
 Luis Garcia

brauer.tex

@@ -221,10 +221,10 @@ \section{Lemmas on algebras}
 W/(V' \otimes_k K)  \subset  (V/V') \otimes_k K.
 $$
 If $\overline{v} \in V/V'$ is a nonzero vector such that
-$\overline{v} \otimes 1$ is contained in $W/V' \otimes_k K$,
+$\overline{v} \otimes 1$ is contained in $W/(V' \otimes_k K)$,
 then we see that $v \otimes 1 \in W$ where $v \in V$ lifts $\overline{v}$.
 This contradicts our construction of $V'$. Hence we may replace
-$V$ by $V/V'$ and $W$ by $W/V' \otimes_k K$ and it suffices to prove
+$V$ by $V/V'$ and $W$ by $W/(V' \otimes_k K)$ and it suffices to prove
 that $W \cap (V \otimes 1)$ is nonzero if $W$ is nonzero.
 
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